Home / 3,178,679.07-4,387,847.72-1,955,480.25

Finding the Fourth Proportional to 3,178,679.07, 4,387,847.72 and 1,955,480.25

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Solution

The fourth proportional to 3,178,679.07, 4,387,847.72 and 1,955,480.25 is: 2,699,344.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,679.07 : 4,387,847.72 = 1,955,480.25 : x
  2. Step 2: Convert to fraction form
    3,178,679.07/4,387,847.72 = 1,955,480.25/x
  3. Step 3: Cross multiply
    3,178,679.07x = 4,387,847.72 × 1,955,480.25
  4. Step 4: Simplify right side
    3,178,679.07x = 8,580,349,546,690.13
  5. Step 5: Solve for x
    x = 8,580,349,546,690.13/3,178,679.07
  6. Step 6: Final answer
    x = 2,699,344.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.